Scientists Stunned: Meet L 98-59 d, the Hellish Exoplanet with a Toxic 'Rotten Egg' Atmosphere and Rivers of Scorching Lava

In a groundbreaking discovery, astronomers have identified a super-Earth exoplanet, designated L 98-59 d, which is leaving scientists stunned due to its extraordinary characteristics. Located approximately 35 light-years away, this hellish world orbits a red dwarf star and boasts a toxic atmosphere, replete with hydrogen sulfide and other sulfur-bearing gases, reminiscent of the pungent smell of rotten eggs.

Utilizing the cutting-edge capabilities of the James Webb Space Telescope (JWST) and ground-based observations, researchers have been able to glean valuable insights into the composition and properties of L 98-59 d. The data suggests that this exoplanet is a low-density world, with a significant presence of sulfur-rich compounds in its atmosphere. This unique feature has sparked comparisons to a "rotten egg" smell, typically associated with the presence of hydrogen sulfide gas.

The discovery of L 98-59 d is significant, as it may represent a new class of sulfur-rich planets, challenging our current understanding of

Sources

• https://www.space.com/astronomy/exoplanets/astronomers-discover-a-new-type-of-planet-that-probably-smells-like-rotten-eggs
• https://science.nasa.gov/exoplanet-catalog/l-98-59-d/
• https://arxiv.org/abs/2603.02209